WRUM285

Perhaps an unusual question, but would there be any issues using a portable mobile setup between multiple vehicles? My idea is to use a setup like Midland has with the MXT500 and ammo can. It'd use a battery and charger that could be plugged in to a power source in the vehicle which would charge the battery while using, or use only on battery. The antenna would be permanently installed in each vehicle using an NMO style mount. Obviously the best way would be to install a dedicated radio in each vehicle, but I am the only one using the radios and the vehicles.... just trying to bounce my ideas off the experts here. lol. Would there be any grounding issues with the antenna installation or power to the battery charger?